Comparative analysis of modern empirical spectrophotometric atlases with multicolor photometric catalogues

E. Yu. Kilpio1*, O. Yu. Malkov1,2, and A. V. Mironov3
1Institute of Astronomy, Russian Acad. Sci., 48 Pyatnitskaya, Moscow 119017, Russia
2Faculty of Physics, Moscow State University, Leninskie Gory, Moscow 119991 GSP-1, Russia
3Sternberg Astronomical Institute, Moscow State Univ.,13 Universitetskij Prosp., Moscow 119992, Russia

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Abstract

We present the results of the comparative analysis of the most known semi-empirical and empirical spectral atlases that was carried out using the data from the WBVR photometric catalogue. The results show that standard error of synthesized stellar magnitudes calculated with SEDs from best spectral atlases reaches 0.02 mag. It has been also found out that some of modern spectral atlases are burdened with significant systematic errors. The agreement for the 5000-10000 Å spectral range is rather satisfactory, while there are problems for wavelengths shorter than 4400 Å.

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Keywords : semiempirical atlases – catalogues – stars: fundamental parameters